Active Autowerke E9X M3 Signature X Pipe with GESI Ultra High Flow Cats (11-018) 1670 eliminating the need to use

eliminating the need to use an external MAP sensor to reference boost pressures

A thick stainless-steel heat shield protects the pipe from the hot turbocharger manifold

Includes neutral safety switch

ensuring smooth operation of the piston

Dyno Proven gains of up to 23 hp and 24 lb-ft

Active Autowerke E9X M3 Signature X Pipe with GESI Ultra High Flow Cats (11-018) 1670 eliminating the need to useThe Active Autowerke E9X M3 Signature X Pipe with GESI Ultra High Flow Catalysts is engineered as a true bolt on upgrade designed to fit BMW E9X M3 models without cutting or welding. Constructed from 100% 304 brushed stainless steel, this X Pipe features high flow GESI catalytic converters engineered to maintain optimal emissions control without triggering a Check Engine Light. Includes two 4" GESI G Sport high flow catalytic converters, EPA